Photos of the week: 5/22 - 5/29

Iraqi army tanks get into position on the outskirts of Baiji refinery north of Tikrit, during a joint operation between the army and popular mobilisation units to retake the remaining area of the Baiji oil refinery from Islamic State (IS) group jihadists, on May 24, 2015. The Islamic State group has executed 16 Iraqi traders taking food from the city of Baiji to the government-controlled western city of Haditha, officials said. AFP PHOTO / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

People, including a group of sailors in New York for Fleet Week, look out from the newly built One World Observatory at One World Trade Center on May 22, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers, opening to the public on May 29th with tickets currently being sold online. (Photo by Spencer Platt/Getty Images)

SRINAGAR, KASHMIR, INDIA - MAY 28: Indian police fire a water cannon of purple dyed chemical water at Kashmiri daily wage employees during a protest against the government on May 28, 2015 in Srinagar, the summer capital of Indian Administered Kashmir, Indian. Hundreds of Kashmiri casual and daily wage employees of state government assembled in Srinagar to march towards the civil secretariat, which houses the office of the Chief Minister , in protest to press for their demands. Indian police used purple dyed chemical water canons and resorted to baton charge to disperse them. The employees were demanding the regularization of daily wagers, casual labourers, seasonal and temporary workers who have been working in many government departments for the past many years as well as release of pending salaries.(Photo by Yawar Nazir/ Getty Images)

An Iraqi government forces member keeps position in the Jurf al-Sakher area, some 50 kilometres south of Baghdad, to protect the area from further Islamic State (IS) group advancement, on May 24, 2015. Iraqi forces retook territory from IS group east of Ramadi on May 23, 2015, in their first counterattack since the jihadists' capture of the Anbar provincial capital a week earlier. AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A flash of lightning during a thunderstorm at night over the city of Cali, Valle del Cauca department, Colombia, on May 27, 2015. AFP PHOTO / LUIS ROBAYO (Photo credit should read LUIS ROBAYO/AFP/Getty Images)

Indian horseman Rahul and his horses cool off in a canal on the outskirts of Jalandhar on May 28, 2015, as scorching weather conditions continue across India. More than 1,100 people have died in a blistering heatwave sweeping India, authorities said, as forecasters warned searing temperatures would continue. AFP PHOTO/SHAMMI MEHRA (Photo credit should read SHAMMI MEHRA/AFP/Getty Images)

ALLAHABAD, INDIA - 2015/05/27: Buffaloes cooling in the River Yamuna on a hot summer day. Hundreds of people have died in southern India since the middle of April as soaring summer temperatures scorch the country, officials said Tuesday. (Photo by Prabhat Kumar Verma/Pacific Press/LightRocket via Getty Images)

NEW DELHI, INDIA - MAY 24: A road melt near Safdarjung Hospital after the Temperature rise to 45 degree Celsius during a hot weather as Delhi/NCR experienced yet another scorching day, on May 24, 2015 in New Delhi, India. The national capital sizzling today as heat wave-like conditions prevailed across the city with mercury hovering above 45.3 degree Celsius, making life tough for the Delhiites. (Photo by Sanjeev Verma/Hindustan Times via Getty Images)

Members of the public visit the Main Chamber of Gaping Gill, the largest underground cavern in Britain naturally open to the surface, near Ingleton, northern England on May 26, 2015. At a depth of almost 100 meters from the surface, and with a volume comparable to the nave of York Minister, trips into Gaping Gill cavern are offered twice a year to members of the public alternatively by Bradford Pothole Club and Craven Pothole Club. AFP PHOTO / OLI SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images)

BAOJI, CHINA - MAY 25: (CHINA OUT) Students from College of Nursing in a vocational school take part in graduation examination outside classroom on May 25, 2015 in Baoji, Shaanxi province of China. Graduation examination is a matter of concerning students' future and college students of a vocational school in northwest China's Baoji in Shaanxi province conducted the test without teachers' supervision.(Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

GOLETA, CA - MAY 23: Workers begin their day of cleaning oil from Refugio State Beach on May 23, 2015 in Goleta, California. California Gov. Jerry Brown declared a State of Emergency after over 100,000 gallons of oil spilled from an abandoned pipeline on the land near Refugio State Beach, spreading over about nine miles of beach within hours. The largest oil spill ever in U.S. waters at the time occurred in the same section of the coast in 1969 where numerous offshore oil platforms can be seen, giving birth to the modern American environmental movement. (Photo by Justin Sullivan/Getty Images)

SYDNEY, AUSTRALIA - MAY 24: Festival visitors watch the 'Mechanised Colour Assemblage' installation illuminated on the Museum of Contemporary Art Australia facade as part of the Vivid Sydney Festival on May 24, 2015 in Sydney, Australia. Vivid Sydney is an annual festival that features light sculptures and installations throughout the city. The festival takes place May 22 through June 8. (Photo by Mark Kolbe/Getty Images)

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It's been a busy week in news, from the colorful Vivid Sydney Festival to the opening of One World Trade Center's observatory, and with severe weather from Texas to India and beyond. Click through the slideshow above to see the best photos from these stories and more from around the world.

If you missed them, check out last week's best news photos below, and be sure to check back next weekend for our selection of the best photography from the next seven days.

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Photos of the week: 5/22 - 5/29

NEW LONDON, CT - MAY 20: A cadet waves moments before U.S. President Barack Obama delivers the keynote address at the U.S. Coast Guard Academy at commencement exercises on May 20, 2015 in New London, Connecticut. Obama used the occasion to speak about the dangers of global warming to both America and international security. This was the 134th commencement exercises at the prestigious academy. (Photo by Spencer Platt/Getty Images)

A kite surfer sails on a downwind run on the waves of Mediterranean Sea as the cows stands on the shore of the sea near the town of Ulcinj on May 19, 2015. AFP PHOTO/ARMEND NIMANI (Photo credit should read ARMEND NIMANI/AFP/Getty Images)

KUALA LANGSA, INDONESIA - MAY 19: A Rohingya girl take a rest at a temporary shelter on May 19, 2015 in Kuala Langsa, Aceh province, Indonesia. Hundreds of Myanmar's Rohingya refugees arrived in Indonesia on May 15, many requiring medical attention. Thousands more are believed to still be stranded at sea reportedly with no country in the region willing to take them in. Myanmar's Rohingya Muslim community have long been persecuted and marginalized by Myanmar's mostly Buddhist population. (Photo by Ulet Ifansasti/Getty Images)

Workers sort Alphonso mangoes into crates at a local mango trader's premises in Ratnagiri, Maharashtra, India, on Saturday, May 16, 2015. The June-September monsoon season is crucial for food and consumer prices in Asia's third-largest economy, where agriculture accounts for about 15 percent of gross domestic product. Photographer: Dhiraj Singh/Bloomberg via Getty Images

A helicopter flies overhead as lava flows out of the Piton de la Fournaise volcano as it erupts on May 17, 2015 on the French island of La Reunion in the Indian Ocean. The Piton de la Fournaise started to erupt early on May 17, with its last eruption dating back to February 4. AFP PHOTO / RICHARD BOUHET (Photo credit should read RICHARD BOUHET/AFP/Getty Images)

LONDON, ENGLAND - MAY 19: A visitor looks at a flower in a rose garden on the first public day of the Chelsea Flower Show on May 19, 2015 in London, England. The show, which has run annually since 1913 in the grounds of the Royal Hospital Chelsea, is open to the public from 19th to 23rd May and is expected to draw around 157,000 visitors. (Photo by Carl Court/Getty Images)

NEW DELHI, INDIA - MAY 19: People witnessed huge dust storm and light rainfall after scorching heat at Rajpath, on May 19, 2015 in New Delhi, India. North Indians have been reeling under extreme heat for the last few days during which the maximum stayed above the 40 degree mark, touching 43 degrees yesterday. Delhi-NCR and other parts of North India witnessed season's first severe dust storm. The dust storm had a speed of 60 to 80- kmph and also dropped the visibility levels in the area. (Photo by Virendra Singh Gosain/Hindustan Times via Getty Images)

MEDFORD, MA - MAY 17: Anschel Schaffer-Cohen smiles as he wears a stuffed lemur on his cap during the commencement ceremony for Tufts University's class of 2015 in Medford, Mass., May 17, 2015. (Photo by Keith Bedford for The Boston Globe via Getty Images)

LONDON, ENGLAND - MAY 15: Temporary duck lanes have been painted on busy towpaths in London, Birmingham and Manchester to highlight the narrowness of the space that is shared by a range of people and wildlife on May 15, 2015 in London, England. The Canal & River Trust's new campaign, Share the Space, Drop your Pace, is encouraging everyone who uses the towpaths to be considerate of others by sharing the space and dropping your pace to keep the towpaths a special place for everyone. (Photo by Bethany Clarke/Getty Images for Canal & River Trust)